Method and apparatus for time synchronization using GPS information in communication system

a technology of gps information and communication system, applied in the field of synchronizing the time of peripheral nodes in wireless communication networks, can solve the problems of system inability to synchronize as desired, and lack of synchronization can have significant consequences on the system

Active Publication Date: 2009-02-05
SAMSUNG ELECTRONICS CO LTD
View PDF8 Cites 75 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0019]Accordingly, the present invention has been made in part to solve at least some the above-mentioned problems occurring in the prior art, and to provide the advantages discussed herein below. One aspect of th

Problems solved by technology

However, the OCXO is bulky and uses various levels of power (12V, 24V, 30V) for operation, and thus the OCXO typically finds use for repeaters or for military purposes (e.g. missiles, satellites) than for personal portable communication.
However, these methods have a problem in that, if GPS information is not properly receiv

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and apparatus for time synchronization using GPS information in communication system
  • Method and apparatus for time synchronization using GPS information in communication system
  • Method and apparatus for time synchronization using GPS information in communication system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029]Hereinafter, exemplary embodiments of the time synchronization method and apparatus according to the present invention will be described in detail with reference to the accompanying drawings. The exemplary embodiments are provided for illustrative purposes, and a person of ordinary skill in the art will appreciate that the invention is not limited to the examples shown and described herein. For the purposes of clarity and simplicity, a detailed description of known functions and configurations incorporated herein may be omitted to avoid making the subject matter of the present invention unclear to a person of ordinary skill in the art.

[0030]The time synchronization method according to the present invention typically uses GPS information in a communication system. According to an exemplary embodiment of the present invention, it is proposed that, in order to synchronize the time of a node not having a GPS receiver in an Ethernet system, signals of a node having a GPS receiver a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A method and apparatus for time synchronization (TS) method using GPS information in a communication system synchronizing the time of slave nodes, which do not have a GPS receiver, by using GPS information of a node having a GPS receiver. The method includes the steps of extracting 1PPS, TOD, 1PPS_en, and clocks using GPS signals by a grand master node having a GPS receiver, stabilizing the signals, generating a sync message for TS, and transmitting the sync message to a slave node; receiving the sync message by the slave node and conducting a TS operation using OFCC synchronization technology extracting 1PPS, TOD, and 1PPS_en signals using the modified TOD information by the block and delivering to a stabilization block of the slave node for stabilization; and redelivering to the TS block to update TOD information and generate a sync message for TS of a second slave node.

Description

CLAIM OF PRIORITY[0001]This application claims priority under 35 U.S.C. §119 from an application entitled “Method and Apparatus for Time Synchronization Using GPS Information in Communication System” filed with the Korean Intellectual Property Office on Apr. 17, 2007 and assigned Serial No. 2007-37343, the contents of which are incorporated herein by reference in its entirety.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a method for synchronizing the time of peripheral nodes in wireless communication networks. More particularly, the present invention relates to synchronizing the time of nodes, such as peripheral nodes, which have no GPS (Global Positioning System) receiver, by using GPS information of a node having a GPS receiver in a communication system.[0004]2. Description of the Related Art[0005]A GPS service is generally provided in the following manner: GPS signals are received from at least three GPS satellites, and accurate...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04L7/06G01S1/00
CPCG04G5/002G04G7/02H04J3/0697H04J3/0664H04J3/0667H04J3/0644G04R20/06H04L7/02
Inventor CHO, JAE-HUNCHO, BYUNG-DUCKOH, YUN-JEHWANG, SEONG-TAEK
Owner SAMSUNG ELECTRONICS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap